My orders
How it works
Examples
Reviews
Blog
Homework Answers
Submit
Sign in
How it works
Examples
Reviews
Homework answers
Blog
Contact us
Submit
Fill in the order form to get the price
Subject
Select Subject
Programming & Computer Science
Math
Engineering
Economics
Physics
Other
Category
Statistics and Probability
Calculus
Differential Equations
Quantitative Methods
Discrete Mathematics
Financial Math
Real Analysis
Abstract Algebra
Linear Algebra
Complex Analysis
Functional Analysis
Differential Geometry | Topology
Combinatorics | Number Theory
Analytic Geometry
Operations Research
Other
Deadline
Timezone:
Title
*
Task
*
Which of the following statements are true? Justify your answers. (This means that if you think a statement is false, give a short proof or an example that shows it is false. If it is true, give a short proof for saying so. For instance, to show that ‘{1, padma, blue} is a set’ is true, you need to say that this is true because it is a well-defined collection of 3 objects.) i) For any two sets A and B, A B c A ∩ = B . ii) The matrix 0 0 1 1 is singular. iii) The contrapositive of ‘ ∃ y such that )y(P is true’ is ‘ ∈Z ∃ x such that )x(P ∈Z is true’. iv) The system 1 2x − 3y = and 0 6y − 4x + 2 = has a unique solution. v) If y,x such that y ∈C x 2 = and x y 2 = , then 1 x = y = . vi) a ≥ b ⇔ −a ≤ −b is an absolute inequality. vii) If }2 A = ϕ,B = },2,1{ C = {− ,1 − , then A× B×C has 4 elements. viii) The argument of 1+ i3 is 3 π . ix) A linear equation over R can have at most one root in C R . x) x1 − x2 = x1 − x2 ∀x1 x, 2 ∈R .
I need basic explanations
Special Requirements
Upload files (if required)
Drop files here to upload
Add files...
Account info
Already have an account?
Create an account
Name
*
E-mail
*
Password
*
The password must be at least 6 characters.
I agree with
terms & conditions
Create account & Place an order
Please fix the following input errors:
dummy
